/**************************************************************************(C)*
 *
 *  This file is part of the GreenHills project
 *  Copyright (C) 2009  Tieto Corporation
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  Not for commmercial use. Only with Tieto permission.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *************************************************************************(C)*/

#pragma once

#include <QtCore/QObject>
#include "io/datalistener.h"
#include "eventdll.h"

namespace io {
    class CConnection;
}

namespace greenhills {
namespace event {

class CEvent;
class CActionEvent;

/**
  * @brief Asynchronous communication channel
  *
  * This class ensures client's communication with server over asynchronous
  * channel. The communication is asynchronous in both direction so events can
  * be sent to server, and some events can be received from server at any time.
  */
class GH_EVENT_QT_CLASS CAsynchronousChannel
    : public QObject, public io::IDataListener
{
    Q_OBJECT

public:
    CAsynchronousChannel(QObject *pParent, io::CConnection *pConnection);

public:
    void sendMessage(const CEvent &pRequest);

private:
    virtual void dataReceived(const char *pData,
            unsigned int pLength,
            io::CConnection *pConnection);

Q_SIGNALS:
    void eventReceived(const greenhills::event::CEvent &event);

private:
    io::CConnection *mConnection;
};

} //namespace event
} //namespace greenhills
